Reflection and Discussion
Casey was given the problem 57 + 274. He knows that addition is commutative, so the answer
to 57 + 274 is the same as 274 +57.
He wondered whether it was easier to solve 57 + 274 OR 274 +57.
What do you think?

Describe how fraction strips can you order fractions

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station.he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil